index.php for ajax correction

git-svn-id: https://plugins.svn.wordpress.org/formget-contact-form/trunk@1003014 b8457f37-d9ea-0310-8a92-e5e31aec5664
new index.php


git-svn-id: https://plugins.svn.wordpress.org/formget-contact-form/trunk@1003015 b8457f37-d9ea-0310-8a92-e5e31aec5664